Ptyctodontida

(redirected from Ptyctodont)

Ptyctodontida

[‚tik·tə′dänt·əd·ə]
(paleontology)
An order of Middle and Upper Devonian fishes of the class Placodermi in which both the head and trunk shields are present, and the joint between them is a well-differentiated and variable structure.
References in periodicals archive ?
The occurrence of a new ptyctodont genus from the Rezekne RS in the East Latvian Ludza-15 drill core at a depth of 430.8 m is worthy of note.